Speed-controlling device



Jan. 27. 1925. 1,524,445

M. MANI CKI SPEED (iONTROLLING DEVI CE Filed Jan. 14. 1924 2 Sheets-Sheet 1 IN V EN TOR.

' ATTORNEY.

M. MANICKI SPEED CONTROLLI NG DEVI CE Filed Jan. 14. 1 2 Sheets-Sheet 2 Patented Jan. 27, 15925.

OFFICE Merle-KI, r erner. WISQQNSIN.

srnnn-oon'rnornrne nnvron.

Application filed January 14, 1924:. Serial No. 686 242.

To all whom it may, concern:

Be it known that 1, MICHAEL MANron-I, .a

citizen. of the United States, residing at.

\Vausau, in the. county of Marathon and State of \Visconsin, have invented certain new and useful In'iprovements in Speech Controlling Dev-ices,.of which the. followin is a specification, reference being hadto the accompanying drawings.

This invention relates to speed controlling devices for: internal combustion engines, and more particular to. athrottle.controlling de-. vice therefor.

An important object of theinvention is to provide governor operated mechanism, the governor being driven from a rotating part of the engine or accessory thereof and haw.

ing means for translating this rotating. de-.

vice to a partial rotation ofthe shaft connected with thethrottle in one ortheother direction, dependingupon the speed of the engine as compared with a selected maximum speed, :so'that the throttle controlling.

operation is positive. bothias to opening. and

' closing of the throttle.

A further object of the invention is .to.

provide. a device of this character including a relatively simple. planetary action for translating the rotation.

A. further object of the invention is, to provide a device oft-his character employing.

the slip. of a friction clutch forreliev-ing the parts of the governor of strain whenthe throttle is in. one of its extreme positions.

A stil-l=further object of the invention, is

to provide a device of this character which is durable and efficient in service, which may be cheaply and readily produced, and which will be a general improvement in the art.

These and other objects I attain by the.

construction shown in the accompanying drawings, wherein for the purpose Of'lllL'l'Sf. tration is shown 1.PI'QfGIZFQCl'GIHbOClllllBllii of my invention and wherein Figure 1 is a fragmentary side elevation showing governor mechanism constructed in accordance with my invention applied to. an engine;

Figure 2 is anenlarged longitudinal sectional vi ewthrough the governor'mechanism.

pr pe Figure 3 is a section onthe line 33 of Figure. 2, thev casing being omitted.

Figure 4 is (i-section onthe line e-i of Figure. 2

Figure. 5. is a section on the line 5&5 of Figure 2/;

Figure 6 is a section on the line 676: of Figure 2;

Figure 7 is a detail'view showing the manner of connecting the throttle and the driven shaftof the governor mechanism.

Figure 8 is a detail View showing the limiting mechanism for thevalve.

Referringnow more particularly to the drawings thenumeral 10 indicates generally the engine of an. internal combustion engine and 11 the manifold of the engine. In accordance with my invention this manifold is preferably provided with a control throttle valve 12 constructed and operating indc-.. pendently. of the usual throttle. valve 18 with whichthe carburetor 1 1 of the engine isv provided. The throttle valve 12 of the in take manifold 11 is so. constructed that its movement to open and closed positions is liniiited, this construction being generally illustrated at '15 and more particularly shown in Figure 8. In connection with this type of throttle valve I employ a governor mechanism 1:6:driven fromany desired ro-. tatable; part of the engine. In the present instance. I have disclosed this governor as being driven by the fan belt 17' of the engine. This governor may be supported in any de-v sired manner, brackets 18 being generallyv indicated for this purpose.

Referring now more particularly to Fig- .ures. 2 to. 6 the governor embodies a. casing consisting of three sections, these sections be ing hereinafter referred to as the base 2O thehousing- 21 and cover plate 22; This cover plate is; provided: with an elongated .hubportion 2 3 which is bush-ed, as at 24t fo1= tremth-e extension 37 forming a cover plate. Through the cover plate is directed a screw having a shoulder 27 abutting the adjacent face of the thrust plate mounting and a reduced portion loosely extending through an opening 28 formed in this mounting. The end of this reduced extension, which is indicated at 29, has apin preventing disengagement of the mounting therefrom. This thrust plate mounting is provided with notches .30 forming a swivel mounting for lugs 31 formed at diametrically. opposed points upon a thrust plate 3-1 which surrounds the shaft.

Next adjacent the thrust plate upon the shaft 25 is feathered one member 33 of a friction clutch. This member 33 consists of a hub portion 34 the end of which abuts the thrust plate 32 and the flange 35 of a desired diameter. Through this flange 35- openings 36 are formed, the purpose of which will presently appear.

The shaft 25 is provided with a reduced shoulder 38. Mounted for rotation upon this reduced extension and abutting the shoulder 38 is a relatively heavy disk 39 forming the fly wheel or balance Wheel of a governor mecha- "nism. V The governor mechanism proper includes a pair of centrifugal weights 4O pivoted to the balance disk 39 and a shiftable portion 41- forming the second member of the friction clutch hereinbefore referred to.

This shiftable member embodies a hub portion 42 rotatably mounted upon the shaft 25 5 and a flan e 43 corres ondin in size to the flange 35 of the clutch member 33 hereinbefore described. This flange has project- "-=ing therefrom at diametrically opposed points lugs 44 which extend between the arms 45 connecting the centrifugal elements 40 to their pivots and are pivoted to these arms as indicated at 46. These arms further overlie the hub portion 42 in such manner as to provide a guide housing for a spring 47 extending between the disk 39 and the flange 43, which spring serves to urge the flange 43 into engagement with the flange 35. Be-

tween these flanges is disposed a felt washer 48 to which oil is applied during operation of the governor through the openings 36.

The disk 39 embodies a hub portion 49 to which is secured a gear 50. Abutting the 5 face of the gear remote from the disk,

CJI

7 Upon the opposite side of the supporting plate 52 from the gear a second gear 58 is mounted upon and secured to the reduced extension 37 of the shaft, this gear having the same type of teeth as the gear 50 but having a lesser number of teeth.

The base portion 20 of the hous ng includes a hub portion 59 having secured therein a tube 60. Mounted within this tube 60 in a bearing 61 carried by the tube is a shaft 63, hereinafter referred. to as the throttle control shaft. When the base 20 of the housing is applied to the remainder of the housing this shaft 63 is axially aligned with the shaft 25 and the reduced extension 37 thereof. This shaft has upon its inner end a reduced extension 64 providing a shoulden 65 against which abuts a plate 66 form ing a spring scat. Upon the outer end of this reduced extension a radial arm 67 is mounted and a spring 68 extends between the plate 66 and arm 67 and normally maintains this plate firmly against the shoulder. The purpose of this construction will hereinafter appear. This arm is provided upon its free end with a gear 69 adapted to mesh with the gear 58 of the extension 37 and likewise to mesh with an lnternal ring gear 70 mounted in guides 71 carried by the base section 20 and free to rotate in such guides. When the sections of the housing are in assembled relation this ring gear is likewise engaged by the gear 57 carried by the arm 56 of the supporting late 52, the engagement of these gears wit 1 the plate being such that the arm 67 with its gear is free to rotate and it does not engage the gear 57 during its passage. It is for this reason that the spring construction hereinbefore described is provided since such construction will permit the shaft 63 to yield longitudinally in event of longitudinal movement of the shaft 25 and prevent accidental engagement of the gears 69 and 57 with one another. The outer end of the shaft 63 is provided with a female member 72 of the joint, the male member of which is carried by the shaft 73 of the throttle valve 12, the point of connection between the shafts 73 and 63 preferably being within the tube 60 so that it is relatively inaccessible.

In the operation of the device while the speed of the engine is below a. given point the flanges 35 and 1-3 are engaged by the spring upon opposite side faces of the fell washer 4S and the disk 39 rotated in conjunction with the shaft 25. As the speed increases, the centrifugal elements 40 moving outwardly from the shaft and toward the disk causing the flange 3 to be withdrawn against the action of the spring and accordingly the frictional engagement between theflanges 35 and 43 and the felt washer is relieved permitting the disk 39 to slow down the speed. Referring more par ticularly to the planetary gearing, it is pointed out that the gear driven from i the? shaft 25 v the gear. 69 0f. the-ar1n 67 is positively ring gear T0 "for a given speed; The gear 50, onthe contra v, 1s drrv'en only' from the and: the speed thereof will: accordingly vary the governor: mechanism. alternatelv is thrown I into; OPGBjl-ttUOll 3nd disconnected. Since thedrive cit-the governor is a fric-: tional one-th1s= gear may be sta-ted as f-rrc tional'ly driven and as frictional 1 y driving through the gear Wand-the ring gealimi't).

Assuniing'the gears 50 and 58 to have six-t teen and thirteen teeth =respectively= then the tei'idency associated gear 57, to drive thering-gear 70' at a greater rate of speed thanth'e ring gear will be-driven *by 'the positive drive ofthe gear 58 and: its associated gear 69 provided the disk 39and shaft 25 are rotating at thei same speeds. Since 'tlieoreticallfv" they are operating at thesamc speeds at. allitimes' when the clutch mechanism. is engaged, there is a tendency -of-:the ring gear: atal'l; such times to rotatezin' the direction this direction i'novesthecthrottle l2 lto 'the fully open position when its rotative move-- ment is checked. After the throttle hasnr rived at itsfully' open position their thefring." gc-ar acts a hrake' uponthe disk, through the gears (ii-and 50,a.nd the dislri39 accoi'di in gly operates at a slightly lower speed than .the speed of the shaft, the"flanges 43' and slipping upon the felt washerld- 'llherw fore; at all speeds below a given engine speed frictionalmeans are provided fore holding the throttle valve 12 in it-S open a position.

\Vhen the speed the disk 39' ncreases suflicicntly that the frictional engagementbetween the flanges 43 and is reduced by movement of the centrifugal members d0 against the action of the spring-pf the govcrnor and the speed of the friction disk 3 9 accordin lv becomes less than the speedof the shaft conditions are reversed, particuh 'ly when this reduction in speed is sutlicient that the tendency (if-the gear train, represented by the gears 50 and 57 to rotate the ring gear in the direction of the arrow is less than the tendency of the train of nirs 58 and 69 to rotate the gear in the same direct-ion. Un der these conditions the gear 57 acts as a brake upon the ring gear with the result that the rotation of the gear 69 must be compensated for in some way. This is accomplished by movement of the arm (57 in i 58" p ositively'= and accordingly 1 throttle arrives p the arm :67, balance disk 39"of the governor mechanisms I be placed uponthe is for thegear 50,thnough its of :the arrow :A', Figure 5 and to drag: with it the i gear 69 of the arnr 67-; Y The arm isaccord: ingly at speeds below the set governor ispeed and 'itsrcduced extension 37, the

1 the directioir of the arrow .13 in Figure 5 With the result thatt-he -tl'1rottle 12 is moved s g I to :or toward the closed position. As the dl'lVeh and 'tends to posit-ivel v= drive the speed of the :enginecontinnesi when theat its closed 'posi-tion, then .being relatlvelyvfixed by its connections \vitlr"t-histl'irottle and by-Hthc 1 i limiting stop o f the thnott-le, will fix the id With-relation to the speed of the-gear 58 as sition of the gear 69 with the result that the gear 70 is positivelydriven and drags with it the gears 5'? and fitl'andt the disk 09, It will he :seen thatWith-a governor mechanism of this construct-ionundue Wear upon i the various parts of the mechanism is pro vented, the connection being :such that underany circumstances no undue strain can,

governor and at thesam e time the governor actionis positive to open and close t-he va lve and a device is provic'led -WlfllCll may compared with other lnechanisms devised be very cheaply produced when for this purpose. 7 posslbleqn the construction of the device-as here'inhe-fore set forth avithout in any. man

nerdeparting from the spirit of: my HIV-81b tion,- I do notlimitni'iyself to such specific structure except as hereinafter-clain'1ed.

I-e1 im:- 1.-1'n throttle controllingapparatus for internal combustion engines, a-shaft con--- nected to athrottle control-lingthe supply of fuel tothe engine, the movement of. the

thr'ottlebeing limited; at opened and closed positions, a "second-shaft driven from the=v engine, a governor, av friction clutchconnesting the governor and second shaft at speeds below a n'edeternrlined speed and disconnecting the i governor therefron'l at speeds above such predetermined.speed, and planetary gearing connecting. said second shaft and governor with the first shafttendingsto rotate the firstshaft in a direction to open the throttle' whi le the clutch connects the second :shaft'and governor and in the pposite direction \vl-ieirithe governor is discon-a nected from the. second shaft.

2. In throttle controllingapparatus for internal combustion engines, a shaft-connected to a throttle controlling the supply of fuel to the engine, the anovement of the throttle beinglimited at opened and closed positions, a second shaft driven from the engine, a governor, a friction clutch connecting the governor and second shaft at speeds below a'predet-ermined speed and" disconnecting the governor therefrom at speeds above such predetermined speed, planetary gearing "connectingsaid second shaft and governor with the first shaft tending to 1'0 tate the first shaft in a direction to open the throttle While the clutch connects the second shaft and governor and in the opposite direction When the governor is disconnected from the second shaft, including an outer rotatable ring gear, a connection be- Since many changes are lit) tween the ring gear and the governor, and a connection between the first shaft and the governor, the connection between the first shaft and the governor including a planetary gear mounted upon an arm carried by the first named shaft, the connections between the governor and the second shaft and the outer ring gear tending to drive the outer ring gear in the same direction.

3. In throttle controlling apparatus for internal combustion engines, a shaft connected to a throttle controlling the supply of fuel to the engine, the movement of the throttle being limited at opened and closed positions, a second shaft driven from the engine, a governor, a friction clutch connecting the governor and second shaft at speeds below a predetermined speed and disconnecting the governor therefrom at speeds above such predetermined Speed, and planetary gearing'connecting said second shaft and governor with the first shaft tending to rotate the first shaft in a direction to open the throttle while the clutch connects the second shaft and governor and in the opposite direction when the governor is dis-' connected from the second shaft, said friction clutch permitting slip between the second shaft and the governor when the throttle valve is fully opened or closed.

4. In throttle controlling apparatus for internal combustion engines, a shaft connected to a throttle controlling the supply of fuel to the engine, the movement of the throttle being limited at opened and closed positions, a rotatably mounted ring gear, the shaft connected 'to the throttle having an arm, a gear rotatable on said arm and meshing with the ring gear, a second shaft driven from the engine, a'gear on said second shaft meshing with the gear of said arm, governor gearing connecting the governor and ring gear, a clutch controlled by the governor connecting and disconnecting the governor and second shaft, and a connection between the governor and ring gear tending to drive the ring gear in the same direction as the gear of said arm.

5. In throttle controlling apparatus for internal combustion engines, a shaft connected to a throttle controlling the supply of fuel to the engine, the movement of the throttle being limited at opened and closed positions, a rotatably mounted ring gear, the shaft connected to the throttle having an arm, a gear rotatable on said arm and meshing with the ring gear, a second shaft driven from the engine, a gear on said second shaft meshing with the gear of said arm, governor gearing connecting the governor and ring gear, a clutch controlled by the governor connecting and disconnecting the governor and second shaft, and a connection between the governor and ring gear tending to drive the ring gear in the same direction as the gear of said arm and at a higher speed while the governor is connected to the second shaft positions, a gear coaxial with the shaft, the

shaft having an arm, a gear on the arm meshing with the first named gear, governor mechanism controlling a clutch connection and disconnecting the governor from a member driven from the engine, a driving connection between the governor and gear, a driving connection between the engine driven member and the gear, the governor connection to the gear normally driving said gear in the same direction and at a greater speed than the driving speed of the engine operated member when the governor is connected to the engine operated member and retarding the gear when the governor is disconnected from the engine driven member.

7. In throttle controlling apparatus for internal combustion engines, a shaft connected to a throttle controlling the su ply of fuel to the engine, the movement of the throttle being limited at opened and closed positions, a second shaft driven from the engine, a governor, a friction clutch connecting the governor and second shaft at speeds below a predetermined speed and disconnecting the governor therefrom at speeds above such predetermined speed, planetary gearing connecting said second shaft and governor with the first shaft tending to rotate the first shaft in a direction to open the throttle while the clutch connects the second shaft and governor and in the opposite direction when the governor is disconnected from the second shaft, said friction clutch permitting slip between the second shaft and the governor when the thottle valve is fully opened or closed, and means for adjustably regulating the clutching engagement of the governor and shaft operated sections of said clutch.

In testimony whereof I hereunto allix my signature.

MICHAEL MANIOKI. 

